The first thing I thought of was Vermillion River Kentucky Premium Blend, but that's not exactly the same as a Sweet. It is, however, a sweet tobacco with a fairly complex flavor so it's in the same neighborhood.
Another possibility would be a mix of Boba's Bounty with a robust tobacco
juice. I mix Boba's and VS Phoenix at about 40/60 to make a good hearty vape.
I tried to convert a coworker to vapes recently. He smokes the little analog-sized flavored filter-tipped cigarillos, so I thought he could handle a strong throat hit. Set him up with an eGo with a 2.0 ohm carto filled with 24mg Phoenix, and he hacks after taking a hit. So... I guess the best thing to do is to start out on the mild side and let them work up on their own. 12mg might be a good strength for a beginner.